Article
Polymer Science
Dan-Jae Lin, Hao-Lian Lin, Ssu-Meng Haung, Shih-Ming Liu, Wen-Cheng Chen
Summary: By assisted synthesis with surfactants, non-toxic hydroxyapatite nanoparticles can be obtained under different environments, showing excellent biocompatibility and cell viability in biomedical applications.
Article
Polymer Science
J. Javier Burgos-Marmol, Alessandro Patti
Summary: The study shows that accurate tuning of interactions between Janus nanodimers (NDs) and copolymer blocks can lead to precise control over the distribution and orientation of NDs in the polymer matrix. NDs are typically found within the lamellae when enthalpy-driven forces offset their entropic counterparts, whereas excluded-volume effects primarily drive the distribution of NDs in the inter-lamellar spacing when enthalpy-driven forces are not significant. Affinity between host and guest species plays a key role in determining the distribution and orientation of NDs within the polymer matrix, ultimately influencing their ability to diffuse through the matrix.
Article
Polymer Science
Alexandra S. Ushakova, Alexei A. Lazutin, Valentina V. Vasilevskaya
Summary: This study demonstrates that nanoparticles decorated by amphiphilic homopolymers can form multipetal flowerlike structures with different curvatures. The researchers outlined the conditions for the formation of multipetal structures and revealed the possibility of cascades of transformations with a smooth increase in petal number and sharp growth. The results were presented in the form of structure diagrams obtained in a computer experiment and constructed within the framework of the original analytical theory.
Article
Materials Science, Multidisciplinary
Bin Wang, Haomin Wang, Zhi Wang, Jie Tang, Xianting Yuan, Ying Zhang, Hongjun Chen, Wenjie Yu, Meng Song
Summary: Disease transmission and cross-infection caused by drug-resistant bacteria are serious threats to public health. Therefore, the development of new antibacterial materials that do not induce drug resistance is of great importance. In this study, an organic/inorganic antibacterial composite with a contact/release mechanism was successfully synthesized, showing good bactericidal effects and low cytotoxicity.
MATERIALS TODAY COMMUNICATIONS
(2023)
Review
Biochemistry & Molecular Biology
Ferli Septi Irwansyah, Atiek Rostika Noviyanti, Diana Rakhmawaty Eddy, Risdiana Risdiana
Summary: Hydroxyapatite has broad biomedical applications, but conventional synthesis methods are not environmentally friendly or cost-effective. Researchers are striving to develop a simple, efficient, and green method for synthesizing nano-hydroxyapatite. Using biowaste as a calcium source to replace chemical reagents enables green manufacturing.
Article
Materials Science, Multidisciplinary
Shuying Liu, Dongyan Zhang, Weihui Chen, Xiuran Wang, Haixun Ji, Yuqin Fu, Changli Lu
Summary: Silver nanoparticles (AgNPs) were formed on graphene oxide (GO) decorated with a temperature-sensitive copolymer, which showed excellent broad-spectrum antibacterial activity against Gram-positive and Gram-negative bacteria. The antibacterial efficiency of the nanocomposite was dependent on temperature, concentration of nanomaterials, and species of tested bacteria.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Energy & Fuels
Zhi-long Xu, Hong-bo Huang, Cai-ling Liu, Shao-hua Luo, Qing-long Wang, Li-guo Jin, Gui-dong Dong, Hai-long Lu
Summary: In this study, SnO2@C/MCB composites were synthesized through a one-step hydrothermal method and high-temperature calcination, showing a high reversible capacity, excellent rate performance, and cycling stability in potassium-ion batteries.
Article
Materials Science, Multidisciplinary
T. Malyi, V Tsiumra, V. Vistovskyy, N. Mitina, N. Musat, H. Stryhanyuk, A. Kondyr, A. Zaichenko, A. Voloshinovskii
Summary: Template synthesis with heterofunctional oligoperoxide was used to obtain inorganic nanoparticles of controlled size, which showed reduced aggregation and higher luminescence efficiency even at high temperatures.
Review
Microbiology
Solmaz Maleki Dizaj, Sara Salatin, Khadijeh Khezri, Jyh-Yeuan Lee, Farzaneh Lotfipour
Summary: Antimicrobial peptides (AMPs) are a category of small peptides commonly found in nature, and they play a major role in the innate immune system of various organisms by inhibiting fungi, bacteria, viruses, and parasites. With the increasing concern over antibiotic resistance, AMPs hold great potential for applications in areas such as food, medicine, aquaculture, animal husbandry, and agriculture. This review provides an overview of the latest research progress in AMPs, including their mechanism of action, classification, application status, design techniques, as well as the use of AMPs in treating multidrug resistance by decorating nanoparticles and polymers. It also highlights recent advancements in antiviral peptides for treating emerging viral diseases, such as anti-coronavirus peptides, and discusses the future outlook of AMP applications.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Chemistry, Physical
Hao Shen, Zihao Yang, Yilin Xiong, Qi Cao, Kunyu Xu, Meiqin Lin, Juan Zhang, Zhaoxia Dong
Summary: Due to their distinctive anisotropic shapes and rich potential properties, amphiphilic Janus polymer nanosheets (AJPN) have garnered extensive attention. In this study, an organic-based AJPN was synthesized with polystyrene as the hydrophobic side and carboxyl groups presented at the hydrophilic side. The colloidal stability and aggregation kinetics of AJPN suspension were quantitatively measured under different conditions. Rheolaser optical microrheology was used to explore the migration behaviors and rheological properties of AJPN aqueous solution for the first time. The results revealed that AJPN solution exhibited thermodynamically unstable solid suspension properties, which differ significantly from those of common hydrophilic polymers.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Barbara Niemiec, Nikola Lenar, Robert Piech, Krzysztof Skupien, Beata Paczosa-Bator
Summary: This paper introduces a new type of solid-contact layer for ion-selective electrodes based on graphene/gold nanoparticles, prepared by modifying graphene flakes with gold nanoparticles. The modification enhances the electrical and wetting properties of the carbon nanomaterial, resulting in a high electrical capacitance of the electrodes. The designed electrodes exhibit great long-term potential stability, hydrophobic properties, insensitivity to light conditions, and near-Nernstian response in a wide range of potassium concentrations and pH levels.
Article
Engineering, Mechanical
Tanmoy Chakraborty, Apurba Das, Bhabatosh Biswas, Sunit Sarkar, Nillohit Mukherjee, Arijit Sinha, Shubhabrata Datta
Summary: A synthetic composite material membrane was synthesized using PEEK as a polymer matrix and nHAp as a ceramic reinforcement for hip bone implant. Sulphonation of PEEK improved the interfacial bonding between PEEK and nHAp and resulted in superior mechanical properties. The optimum mix with 8% HAp reinforcement showed the most suitable properties.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2022)
Article
Materials Science, Ceramics
Mohammad Moslem Imani, Maryam Kiani, Farzad Rezaei, Razieh Souri, Mohsen Safaei
Summary: The study focused on using nanocomposites to enhance the antibacterial properties of dental materials, and identified the optimal conditions for synthesizing nanocomposites with high antibacterial effects. The results indicated that the nanocomposite significantly reduced the growth of Streptococcus mutans, demonstrating its potential for improving performance in various dental fields.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Biomedical
Soo-Ling Bee, Yazmin Bustami, A. Ul-Hamid, Keemi Lim, Z. A. Abdul Hamid
Summary: The study successfully developed an antibacterial silver nanoparticle-decorated hydroxyapatite nanocomposite through chemical reduction and thermal calcination approaches. The synthesized nanocomposite showed strong antibacterial activity against Staphylococcus aureus bacteria and enhanced bioactivity, making it a promising biomaterial for dentistry and orthopedic implantology.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
(2021)
Article
Chemistry, Multidisciplinary
Adam Creamer, Alessandra Lo Fiego, Alice Agliano, Lino Prados-Martin, Hakon Hogset, Adrian Najer, Daniel. A. A. Richards, Jonathan. P. P. Wojciechowski, James E. J. Foote, Nayoung Kim, Amy Monahan, Jiaqing Tang, Andre Shamsabadi, Lea N. C. Rochet, Ioanna. A. A. Thanasi, Laura. R. R. de la Ballina, Charlotte. L. L. Rapley, Stephen Turnock, Elizabeth. A. A. Love, Laurence Bugeon, Margaret. J. J. Dallman, Martin Heeney, Gabriela Kramer-Marek, Vijay Chudasama, Federico Fenaroli, Molly. M. M. Stevens
Summary: This study describes a simple method for obtaining colloidally stable and low-fouling semiconducting polymer nanoparticles (SPNs) by grafting poly(ethylene glycol) (PEG) onto the polymer backbone. The functionalized SPNs can be specifically targeted to HER2-positive cancer cells by site-specifically clicking anti-HER2 antibodies, antibody fragments, or affibodies onto the SPN surface. In zebrafish embryos, the PEGylated SPNs show excellent circulation efficiency and the affibody-functionalized SPNs exhibit specific targeting towards HER2-expressing cancer cells in a xenograft model. This covalent PEGylated SPN system holds great potential for cancer theranostics.
ADVANCED MATERIALS
(2023)
Article
Energy & Fuels
Thi Thanh Huyen Nguyen, Xuan Cuong Nguyen, Dang Le Tri Nguyen, Dinh Duc Nguyen, Thi Yen Binh Vo, Quang Nha Vo, Trung Duong Nguyen, Quang Viet Ly, Huu Hao Ngo, Dai-Viet N. Vo, Thang Phan Nguyen, Il Tae Kim, Quyet Van Le
Summary: In this study, three types of biomass were converted into biochars and investigated for their ability to remove dyes in water. The results showed that the biochars were effective in removing methylene blue, but different biochars had different optimal adsorption conditions.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Electrochemistry
Quoc Hai Nguyen, Tejaswi Tanaji Salunkhe, Thuy-An Nguyen, Tuan Loi Nguyen, Il Tae Kim
Summary: In this study, Sb/Sb4O5Cl2 nanosheet composites were prepared via galvanic replacement reaction and applied as advanced anode materials for sodium-ion batteries. The Sb/Sb4O5Cl2-6 h NSCs showed excellent electrochemical performance due to the presence of sheet structures and optimal amorphous phases.
ELECTROCHIMICA ACTA
(2022)
Article
Biochemistry & Molecular Biology
Thang Phan Nguyen, Il Tae Kim
Summary: Prussian blue analogs (PBAs) in metal-organic frameworks are attractive for metal ion storage applications due to their high redox potential and availability of diffusion channels. In this work, vanadium ferrocyanides (VFCN) were synthesized and showed high redox potential and reversible capacity in lithium-ion batteries, indicating their potential as cathode materials.
Article
Polymer Science
Cameron Irvin, Chinmay C. Satam, Keya Shial, Prateek Verma, Nicole B. Arroyo, Carson Meredith, Meisha L. Shofner
Summary: Polymer nanocomposites are desirable materials for replacing biological structures due to their large design space for customization of properties. Biobased nanofibers, such as cellulose nanocrystals (CNCs) and chitin nanofibers (ChNFs), are suitable for these applications due to their high specific mechanical properties and cytocompatibility. This study explores nanocomposite aerogels and a hybrid structure mimicking an intervertebral disc, consisting of a CNC/PVA aerogel and a CNC/ChNF/PVA hydrogel, which demonstrate mechanical properties similar to natural discs and potential for customization through material composition and fraction variations in the hybrid structure.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Analytical
Tejaswi Tanaji Salunkhe, Il Tae Kim
Summary: We designed dual polymer Fabry-Perrot interferometer (DPFPI) sensors with thermosensitive poly (methyl methacrylate) (PMMA) and polycarbonate (PC) polymers to achieve highly sensitive temperature sensors. Four different DPFPI sensors were developed, generating different optical properties by changing the sequence of the applied polymers and varying the concentration of the coating solutions. The PC_PMMA_S1 DPFPI sensor exhibited the highest temperature sensitivity, confirming the importance of coating sequence and dual polymer layers in achieving high sensitivity.
Article
Chemistry, Analytical
Thang Phan Nguyen, Il Tae Kim
Summary: This study fabricated various Fe-V-incorporated hexacyanoferrates as Prussian blue analogs via a one-step synthesis, which exhibited changing colors from blue to green to yellow with increasing amounts of incorporated V ions. The X-ray photoelectron spectroscopy spectrum revealed the oxidation of V3+ to V4+ in the cubic Prussian blue structure, enhancing the electrochemical stability and increasing the voltage platform. The vanadium ferrocyanide Prussian blue (VFPB1) electrode showed Na insertion/extraction potential of 3.26/3.65 V vs. Na/Na+ and exhibited stable capacity and retention after cycling tests.
Review
Biotechnology & Applied Microbiology
Quang Nhat Tran, Il Tae Kim
Summary: Saccharina japonica, also known as Laminaria japonica or Phaeophyta japonica, has long been recognized as food and medicine in some Asian countries. Recently, it has also been considered a promising biofuel feedstock for energy and environmental solutions. This review focuses on the advances in bio-hydrogen production from S. japonica and discusses the future developments in this field.
FERMENTATION-BASEL
(2023)
Article
Engineering, Aerospace
Micah J. Schaible, Kristoffer G. Sjolund, Emily A. Ryan, Meisha L. Shofner, John R. Reynolds, Julie S. Linsey, Thomas M. Orlando
Summary: The performance of a flexible electrodynamic dust shield (EDS) system was tested for lunar regolith simulant under high vacuum conditions. The uncapped devices showed efficient dust removal at moderate voltages, while the capped devices required larger voltages coupled with UV illumination. However, the performance of the uncapped devices degraded after several sequential tests, while capping the traces with low-density polyethylene (LDPE) eliminated breakdown and device degradation.
Article
Chemistry, Physical
Gaeun Lee, Il Tae Kim, Jaehyun Hur
Summary: CuP2 is a phosphorous-rich transition metal phosphide with high theoretical capacity and intrinsic alleviation of volume change, making it a potential anode material for Li-ion batteries (LIBs). However, its electrochemical performance is limited due to low electrical conductivity and insufficient regulation of volume expansion. In this study, a CuP2-Te-C ternary composite was proposed as a high-performance anode material. The introduction of Te-C can enhance conductivity and mitigate cycling instability. The study comprehensively investigated the roles of Te and C, and determined an appropriate C content (25 wt%) for improved capacity and cycling stability. The CuP2-Te-C(25%) showed good cycling performance and rate capability. Electrochemical impedance spectroscopy analysis revealed its superior diffusivity and lower charge transfer resistance. This study provides new perspectives on high-performance metal-phosphide anode materials for LIBs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Yue Ji, D. Eric Shen, Yang Lu, Gregory T. T. Schueneman, Meisha L. L. Shofner, J. Carson Meredith
Summary: Multilayer films consisting of nanocellulose and nanochitinasoxygen barrier coatings and a conventional petroleum-based moisturebarrier plastic as the substrate have been widely studied for foodpackaging applications. A study was conducted on multilayer films consisting of poly(ethyleneterephthalate) (PET) as a model substrate with chitin nanowhiskers(ChNWs) and cellulose nanocrystals (CNCs) as bilayer barrier coatings. A method for coating removal was proposed using dissolution in aqueous media at different pH values. The study demonstrated increased oxygen permeability (OP) with recycled CNC and ChNW coatings, suggesting a more sustainable solution for food packaging production.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Emily A. Ryan, Zach D. Seibers, John R. Reynolds, Meisha L. Shofner
Summary: Thermoplastic polymers have great potential for space exploration applications due to their versatile mechanical properties and compatibility with different processing methods. However, their low electrical conductivity limits their use in critical space applications. By studying the microstructural evolution of electrically conductive surface-localized nanocomposites, we can produce durable conductive materials with varying surface structures and high conductivity, expanding the use of polymers in space applications.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Multidisciplinary Sciences
Anh Tien Nguyen, Thanh Ngoc Nguyen, Valentina Olegovna Mittova, Quang Quoc Viet Thieu, Irina Yakovlevna Mittova, Van Man Tran, Minh Thu Nguyen, Dinh Quan Nguyen, Il Tae Kim, Tuan Loi Nguyen
Summary: In this study, nanostructured NdMnxFe1-xO3 perovskites were synthesized using a simple method for high-efficiency anodes of Li-ion batteries. Various characterization assessments were conducted to confirm the replacement of Fe ions with Mn ions, the presence of amorphous and crystalline structures, oxygen vacancies, and interconnection between nanoparticles. The optimal presence of VO, interconnection between nanoparticles, and distinctive properties of the NdFeO3 perovskite contributed to the notable electrochemical performance of the NdMnxFe1-xO3 perovskite with x = 0.3.
Article
Materials Science, Ceramics
Thuan Ngoc Vo, Thuy-An Nguyen, Dinh Mai Khanh Nguyen, Minh Thu Nguyen, Truc Linh Thi Nguyen, Van Hoang Nguyen, Van Man Tran, Dinh Quan Nguyen, Il Tae Kim, Tuan Loi Nguyen
Summary: This study successfully synthesized zinc ferrite materials with different properties by adjusting the pH value of the co-precipitation step. The sample prepared at pH 11 exhibited the best performance as an anode material for LIBs.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Thuan Ngoc Vo, Ji Eun Kang, Hyocheol Lee, Sang-Wha Lee, Suk-kyun Ahn, Jaehyun Hur, Il Tae Kim
Summary: Calcium ion batteries have the potential to be more sustainable, but they need more rechargeable electrodes. A new method involving Prussian blue nanodisks as electrodes can significantly improve the longevity of Ca-based cells. Using a specific binder can enhance the performance of the cathode in Ca-based batteries compared to using polyvinyl fluoride.
Article
Chemistry, Physical
Thang Phan Nguyen, Il Tae Kim
Summary: Molybdenum disulfide (MoS2) is a promising material for lithium storage applications, but its cycling performance can be reduced due to restructuring and sulfur dissolution. By decorating MoS2 nanosheets with B2O3 nanoparticles, the electrochemical performance and cycling stability can be improved.